ANGGUN FERGINA, M.KOM; KAMDAN, M.KOM; BERNIMAN GOFINDO MALAU. Analysis and Design of an Android-Based Tourism E-Ticket Application System in The Toba Caldera with a CRM Approach. Jurnal Info Sains : Informatika dan Sains, [S. l.], v. 13, n. 03, p. 932–940, 2023. Disponível em: https://ejournal.seaninstitute.or.id/index.php/InfoSains/article/view/3535. Acesso em: 18 may. 2026.